| Witham to Bougival | 213.18 mi (343.08 km) |
| Witham to Bouguenais | 334.90 mi (538.97 km) |
| Witham to Boulogne-Billancourt | 216.56 mi (348.53 km) |
| Witham to Boulogne-sur-Mer | 85.24 mi (137.18 km) |
| Witham to Bourg-de-Peage | 508.78 mi (818.81 km) |
| Witham to Bourg-en-Bresse | 438.66 mi (705.96 km) |
| Witham to Bourg-la-Reine | 221.28 mi (356.12 km) |
| Witham to Bourg-les-Valence | 511.85 mi (823.74 km) |
| Witham to Bourges | 335.09 mi (539.27 km) |
| Witham to Bourgoin-Jallieu | 478.21 mi (769.61 km) |
| Witham to Bressuire | 346.27 mi (557.27 km) |
| Witham to Brest | 327.09 mi (526.41 km) |
| Witham to Bretigny-sur-Orge | 232.18 mi (373.66 km) |
| Witham to Breuillet | 233.36 mi (375.56 km) |
| Witham to Briancon | 550.27 mi (885.57 km) |
